.header{
  display:flex;
  display:webkit-flex;
  align-items:center;
  text-align:center;
  height:12vh;
}
.header h3{
  margin:5px;
}
.header h4{
  margin:5px;
}
.header div{
  flex-grow:1;
}
.header img{
  margin:1vh;
  width:10vh;height:10vh;
}
.header a{
  color:white;
  padding-left:10px;
}
